/*
 * Copyright (C) 2007-2012 by XDEV Software, All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 3.0 as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
package xdev.db.sql;


import java.util.List;

import xdev.lang.Copyable;
import net.jadoth.sqlengine.SQL;
import net.jadoth.sqlengine.internal.SqlCondition;


public class WHERE extends SqlObject implements Copyable<WHERE>
{
	private net.jadoth.sqlengine.internal.WHERE	delegate;
	

	public WHERE()
	{
		this(new net.jadoth.sqlengine.internal.WHERE());
	}
	

	public WHERE(Object condition)
	{
		this(new net.jadoth.sqlengine.internal.WHERE(expose(condition)));
	}
	

	WHERE(net.jadoth.sqlengine.internal.WHERE delegate)
	{
		this.delegate = delegate;
	}
	

	@Override
	net.jadoth.sqlengine.internal.WHERE delegate()
	{
		return delegate;
	}
	

	public WHERE and(Object condition)
	{
		delegate.AND(expose(condition));
		return this;
	}
	

	public WHERE or(Object condition)
	{
		delegate.OR(expose(condition));
		return this;
	}
	

	public boolean isEmpty()
	{
		return delegate.isEmpty();
	}
	

	public WHERE encloseWithPars()
	{
		SqlCondition par = SQL.par(delegate.getLastElement());
		List<SqlCondition> body = delegate.getBody();
		body.clear();
		body.add(par);
		return this;
	}
	

	@Override
	public WHERE clone()
	{
		return new WHERE(delegate.copy());
	}
}
